I have my Rails 3.1.0 application running with passenger in production environment and I have a section where the application allows the user to chang开发者_C百科e his profile picture so I upload the
on OSX, a Rails 2.3.14 app under Ruby 1.9.2, this (in a model): img = Magick::Image::read(File.join(image_path)).first
I need to remove the white background from this image and make the background transparent. So it\'s just a black tick on the transparent background exported as a 开发者_开发问答png.
i\'ve been trying to start \'debug server\' for a rails application in aptana studio 3 but i never succeeded.
I have ruby and my gems installed in my home directory using rvm. \'require RMagick\' works from the console and irb, but not from within my Rails app. I have the gem listed in my Gemfile.
I am trying to use Rmagick to combine two images. The image on top can be resized and dragged using Jquery-UI. I get size of the image after r开发者_StackOverflow社区esize using Jquery code such as
I\'m having trouble getting RMagick to work properly. When I run the require in IRB: irb(main):001:0> require \'RMagick\'
How can I make CarrierWave add correct extension to filename depend开发者_Go百科ing on its contents? For example, if I upload file \"logo\" (PNG file
everyone! I was following Railscasts episode #253, using CarrierWave to do image upload. Everything was fine to display the original image, even though the image looked quite big in the browser.
My env is Linux centos, and use ruby 1.8.7, and the code is here below: require \'rubygems\' require \'RMagick\'
加载中,请稍侯......